This Cottage Cheese and Egg Casserole is a protein-packed, savory dish perfect for a hearty breakfast or brunch. Combining fluffy eggs with creamy cottage cheese, tangy feta, fresh shallots, and spinach, it bakes into a flavorful and satisfying casserole topped with melted mozzarella cheese. Easy to prepare and gluten-free, this recipe offers a nutritious and delicious start to your day.